Ok as many of you will know I have been eagerly awaiting the delivery of my new plasma torch, while waiting I have been extensively testing and debugging my new DIY CNC table and it was all going very nicely.

The torch came this morning so I moved the table into my test area, connected up the ground clamp and powered the system up.

All went ok, Mach3 was happy, so I placed a bit of test metal on the table, moved to position for a test fire and triggered a quick pierce signal, no cut just a quick pierce at half power.

That went ok so i went to move the torch back to start position for a cut test, the torch would not move so i pressed the e-stop and restarted, z axis started moving and partial x axis but not Y.

Killed the plasma supply and reloaded Mach.

Now it was jumping about randomly as i turned the MPG knob on the pendant and kept throwing "e-stop requested" errors.

Thinking it might be my cheapo crap pendant, i unplugged it, turned off "run macro-pump" and disabled support for modbus/mpg, I think that was all that is needed to return to normal?

Then i reloaded Mach and tried again, now it sort of moves but the DRO's are moving like 20mm for every physical mm moved, its very jerky too.

Pressing home-all, would bring the axes to home but then back off at 1% speed or very slow at least.

It would also still throw the e-stop requested errors.



Now, having spent a lot of effort hardening the table against RF, I cant believe I have fried it with a two second pierce?

No other PC's in the area showed any sign of problem and there was no radio interference.
This was just a quick pierce at half power.

Any suggestions at all?
I'm desperate.